Austin-based TFF Pharmaceuticals said Tuesday that it has raised $25.9 million to expand its product offerings through a private stock placementThe company, which spun off from Austin-based Lung Therapeutics, was founded in 2018. It uses thin film freezing, a process designed to improve the way lung medication is delivered, to develop pharmaceutical drugs.TFF Pharmaceuticals raised the money through a private placement of stock, with is a method that involves selling [...]